import torch
import numpy as np

x1 = torch.Tensor(5,3)
print("x1:");print(x1)
x2 = torch.rand(5,3)
print("x2:");print(x2)
_x3 = np.array([[1,2,3], [4,5,6], [7,8,9],[10,11,12],[13,14,15]])
x3 = torch.Tensor(_x3)
print("x3:");print(x3)
print(x3.size())

